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<head>
  <title>MSE: live seekable range</title>
  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <script type="text/javascript" src="mediasource.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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<pre id="test">
<script class="testbody" type="text/javascript">

SimpleTest.waitForExplicitFinish();

runWithMSE(function (ms, v) {
  ms.addEventListener("sourceopen", function () {
    var sb = ms.addSourceBuffer("video/webm");
    // Load data with a +2 offset so that we can distinguish buffered range start
    // and seekable range start.
    sb.timestampOffset = 2;
    var promises = [];
    promises.push(fetchAndLoad(sb, 'seek', [''], '.webm'));
    promises.push(once(v, "loadedmetadata"));
    Promise.all(promises)
    .then(function() {
      ms.duration = Infinity;
      sb.abort();
      is(sb.buffered.length, 1, "continuous buffered range");
      is(sb.buffered.start(0), 2, "buffered range start at timestamp offset");
      is(sb.buffered.end(0), 6.001, "buffered range end at original duration + timestamp offset");
      is(v.seekable.length, 1, "continuous seekable range");
      is(v.seekable.start(0), 0, "seekable range start at 0");
      is(v.seekable.end(0), sb.buffered.end(0), "seekable range end at buffered end");

      // LiveSeekableRange.start < buffered.start
      ms.setLiveSeekableRange(1, 5);
      is(v.seekable.length, 1, "continuous seekable range");
      is(v.seekable.start(0), 1, "seekable range start at live range start");
      is(v.seekable.end(0), sb.buffered.end(0), "seekable range end at buffered end");

      ms.clearLiveSeekableRange();
      ok(v.seekable.length, 1, "continuous seekable range");
      is(v.seekable.start(0), 0, "seekable range start at 0");
      is(v.seekable.end(0), sb.buffered.end(0), "seekable range end at buffered end");

      // LiveSeekableRange.end > buffered.end
      ms.setLiveSeekableRange(1, 8);
      is(v.seekable.start(0), 1, "seekable range start at live range start");
      is(v.seekable.end(0), 8, "seekable range end at live range end");

      // LiveSeekableRange.start > buffered.start
      // LiveSeekableRange.end < buffered.end
      ms.setLiveSeekableRange(3, 5);
      is(v.seekable.start(0), sb.buffered.start(0), "seekable range start at buffered start");
      is(v.seekable.end(0), sb.buffered.end(0), "seekable range end at live range end");

      // LiveSeekableRange.start > buffered.end
      ms.setLiveSeekableRange(8, 10);
      is(v.seekable.start(0), sb.buffered.start(0), "seekable range start at buffered start");
      is(v.seekable.end(0), 10, "seekable range end at live range end");

      // LiveSeekableRange.end < buffered.start
      ms.setLiveSeekableRange(0, 2);
      is(v.seekable.start(0), 0, "seekable range start at live range start");
      is(v.seekable.end(0), sb.buffered.end(0), "seekable range end at buffered end");

      try {
        ms.setLiveSeekableRange(2, 0);
        ok(false, "start > end");
      } catch (e) { ok(true, "must thow if start > end"); }

      SimpleTest.finish();
    });
  });
});

</script>
</pre>
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</html>
